Imposer Pro for InDesign

From ALAP:

Imposer Pro - plug-in for Adobe InDesign that imposes document pages into printer flats. Imposer Pro offers six sheet types (2-Up, 4-Up, 8-Up, 2-Up Consecutive, 3-Up Consecutive, and 4-Up Consecutive), four binding types (Saddle Stitch, Perfect Bound, Stacked, and None) and five imposition types (Standard, Work and Turn, Work and Tumble, Split Web, and Sheet Wise). To meet all your imposition needs � such as using different imposition methods for the same document � you can choose which pages to impose and how many signatures to create.